制作分类页面

order-app/src/pages/category/category.vue

@@ -1,22 +1,238 @@
 <template>
-	<view>
-		
+	<view class="u-wrap">
+		<!-- <view class="u-search-box">
+			<view class="u-search-inner">
+				<u-icon name="search" color="#909399" :size="28"></u-icon>
+				<text class="u-search-text">搜索uView</text>
+			</view>
+		</view> -->
+		<view class="u-menu-wrap">
+			<scroll-view scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop">
+				<view v-for="(item,index) in tabbar" :key="index" class="u-tab-item"
+					:class="[current==index ? 'u-tab-item-active' : '']" :data-current="index"
+					@tap.stop="swichMenu(index)">
+					<text class="u-line-1">{{item.name}}</text>
+				</view>
+			</scroll-view>
+			<block v-for="(item,index) in tabbar" :key="index">
+				<scroll-view scroll-y class="right-box" v-if="current==index">
+					<view class="page-view">
+						<view class="class-item">
+							<!-- <view class="item-title">
+								<text>{{item.name}}</text>
+							</view> -->
+							<view class="item-container">
+								<view class="thumb-box" v-for="(item1, index1) in item.foods" :key="index1">
+									<image class="item-menu-image" :src="item1.icon" mode=""></image>
+									<view class="item-menu-name">{{item1.name}}</view>
+								</view>
+							</view>
+						</view>
+					</view>
+				</scroll-view>
+			</block>
+		</view>
 	</view>
 </template>
 
-<script>
-	export default {
-		data() {
-			return {
-				
-			}
+<script setup>
+	import {
+		ref,
+		getCurrentInstance
+	} from 'vue';
+	const instance = getCurrentInstance();
+	const tabbar = ref([{
+			"name": "早点",
+			"foods": [{
+					"name": "豆浆",
+					"key": "豆浆",
+					"icon": "/static/swiper_1.png",
+					"cat": 6
+				},
+				{
+					"name": "油条",
+					"key": "糕点饼干",
+					"icon": "/static/swiper_1.png",
+					"cat": 6
+				},
+				{
+					"name": "油条",
+					"key": "糕点饼干",
+					"icon": "/static/swiper_1.png",
+					"cat": 6
+				}
+			]
 		},
-		methods: {
-			
+		{
+			"name": "米线",
+			"foods": [{
+					"name": "小锅米线",
+					"key": "豆浆",
+					"icon": "/static/swiper_1.png",
+					"cat": 6
+				},
+				{
+					"name": "豆花米线",
+					"key": "糕点饼干",
+					"icon": "/static/swiper_1.png",
+					"cat": 6
+				}
+			]
 		}
+	])
+	const scrollTop = ref(0)
+	const current = ref(0)
+	const menuHeight = ref(0)
+	const menuItemHeight = ref(0)
+	const getImg = () => {
+		return Math.floor(Math.random() * 35)
+	}
+	const swichMenu = async (index) => {
+		if (index == current.value) return;
+		current.value = index;
+		// 如果为0，意味着尚未初始化
+		if (menuHeight.value == 0 || menuItemHeight.value == 0) {
+			await getElRect('menu-scroll-view', 'menuHeight');
+			await getElRect('u-tab-item', 'menuItemHeight');
+		}
+		// 将菜单菜单活动item垂直居中
+		scrollTop.value = index * menuItemHeight.value + menuItemHeight.value / 2 - menuHeight.value / 2;
+	}
+	const getElRect = (elClass, dataVal) => {
+		new Promise((resolve, reject) => {
+			const query = uni.createSelectorQuery().in(instance);
+			query.select('.' + elClass).fields({
+				size: true
+			}, res => {
+				// 如果节点尚未生成，res值为null，循环调用执行
+				if (!res) {
+					setTimeout(() => {
+						getElRect(elClass);
+					}, 10);
+					return;
+				}
+				instance[dataVal] = res.height;
+			}).exec();
+		})
 	}
 </script>
 
-<style>
+<style lang="scss" scoped>
+	.u-wrap {
+		height: calc(100vh);
+		/* #ifdef H5 */
+		height: calc(100vh - var(--window-top));
+		/* #endif */
+		display: flex;
+		flex-direction: column;
+	}
+
+	.u-search-box {
+		padding: 18rpx 30rpx;
+	}
+
+	.u-menu-wrap {
+		flex: 1;
+		display: flex;
+		overflow: hidden;
+	}
+
+	.u-search-inner {
+		background-color: rgb(234, 234, 234);
+		border-radius: 100rpx;
+		display: flex;
+		align-items: center;
+		padding: 10rpx 16rpx;
+	}
+
+	.u-search-text {
+		font-size: 26rpx;
+		color: $u-tips-color;
+		margin-left: 10rpx;
+	}
+
+	.u-tab-view {
+		width: 200rpx;
+		height: 100%;
+	}
 
+	.u-tab-item {
+		height: 110rpx;
+		background: #f6f6f6;
+		box-sizing: border-box;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		font-size: 26rpx;
+		color: #444;
+		font-weight: 400;
+		line-height: 1;
+	}
+	
+	.u-tab-item-active {
+		position: relative;
+		color: #000;
+		font-size: 30rpx;
+		font-weight: 600;
+		background: #fff;
+	}
+	
+	.u-tab-item-active::before {
+		content: "";
+		position: absolute;
+		border-left: 4px solid $u-type-primary;
+		height: 32rpx;
+		left: 0;
+		top: 39rpx;
+	}
+
+	.u-tab-view {
+		height: 100%;
+	}
+	
+	.right-box {
+		background-color: rgb(250, 250, 250);
+	}
+	
+	.page-view {
+		padding: 16rpx;
+	}
+	
+	.class-item {
+		margin-bottom: 30rpx;
+		background-color: #fff;
+		padding: 16rpx;
+		border-radius: 8rpx;
+	}
+	
+	.item-title {
+		font-size: 26rpx;
+		color: $u-main-color;
+		font-weight: bold;
+	}
+	
+	.item-menu-name {
+		font-weight: normal;
+		font-size: 24rpx;
+		color: $u-main-color;
+	}
+	
+	.item-container {
+		display: flex;
+		flex-wrap: wrap;
+	}
+	
+	.thumb-box {
+		width: 33.333333%;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		flex-direction: column;
+		margin-top: 20rpx;
+	}
+	
+	.item-menu-image {
+		width: 120rpx;
+		height: 120rpx;
+	}
 </style>